alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE BitterAPT Kiwi2.0 Data Exfiltration Attempt"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php|3f|mn|3d|"; fast_pattern; http.header_names; content:"|0d 0a|Host|0d 0a|Content-Type|0d 0a|Content-Length|0d 0a 0d 0a|"; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|"; reference:url,www.ctfiot.com/219079.html; reference:url,x.com/ViriBack/status/1937465516873887999; classtype:trojan-activity; sid:2063239; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, tls_state plaintext, created_at 2025_06_30, deployment Perimeter, malware_family KugelBlitz, malware_family Kiwi2_0, performance_impact Low, confidence High, signature_severity Major, tag BitterAPT, tag APT_C_08, updated_at 2025_06_30, mitre_tactic_id TA0037, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel; target:src_ip;)